Kosmix

The aim of Kosmix, according to their own words is to "Build the unofficial home page for every topic on the Web." With the help of a unique categorization engine that searches countless Web pages, a home page is generated on each individual topic. For example, a search on Atkins Diet will bring up a home page, which contains relevant results, articles, images, videos etc on the topic.

The results are further refined on any particular topic. Kosmix is thus the best starting place to search for any topic.